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Finding the Fourth Proportional to 343,995.62, 515,794.78 and 133,387.52

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Solution

The fourth proportional to 343,995.62, 515,794.78 and 133,387.52 is: 200,004.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,995.62 : 515,794.78 = 133,387.52 : x
  2. Step 2: Convert to fraction form
    343,995.62/515,794.78 = 133,387.52/x
  3. Step 3: Cross multiply
    343,995.62x = 515,794.78 × 133,387.52
  4. Step 4: Simplify right side
    343,995.62x = 68,800,586,533.15
  5. Step 5: Solve for x
    x = 68,800,586,533.15/343,995.62
  6. Step 6: Final answer
    x = 200,004.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.